10+ years
Colin - Foster to Adopt
Colin - Foster to Adopt is a 10-year-old male mixed breed located in Brunswick, ME, listed with Midcoast Humane. Senior dogs make wonderful companions…
Midcoast Humane • Brunswick, ME
Senior Mixed Breed dogs in Maine
Senior Mixed Breed dogs for adoption in Maine
Meet 4 adoptable senior Mixed Breed dogs (age 7+) in Maine. Each one is from a shelter or rescue and ready for a calm, loving home.
Older Mixed Breeds in Maine are often passed over for puppies, yet they're usually house-trained, settled in temperament, and ready to bond right away — and because they're fully grown, you already know their size and personality. Adopting a senior Mixed Breed in Maine means welcoming a calm, grateful companion who can settle in from day one.
Last updated July 12, 2026 at 9:30 AM EDT. Listings refresh automatically, usually every 12 hours.
Senior confirmed
Roxy
Roxy is a 7 years, 4 months senior female Mixed Breed at Midcoast Humane in Brunswick, ME. Senior dogs make wonderful companions.
Midcoast Humane • Brunswick, ME
Senior confirmed
Lena
Lena is a 7-year, 1-month-old female mixed breed at Midcoast Humane in Brunswick, ME. Senior dogs make wonderful companions.
Midcoast Humane • Brunswick, ME
Senior confirmed
Bradley
Bradley is a 9-year-old male mixed breed at Midcoast Humane in Brunswick, ME. Senior dogs make wonderful companions.
Midcoast Humane • Brunswick, ME
Senior Mixed Breed dogs in other states
Adopting a senior Mixed Breed in Maine — FAQ
What counts as a senior dog?
Most shelters and vets consider a dog "senior" around age 7, though large breeds often age sooner and small breeds a little later. Every dog listed here is 7 years or older.
How do I adopt a senior Mixed Breed in Maine?
Open any dog's profile to see the shelter or rescue caring for them in Maine, then use the adoption link or contact details to apply directly with that organization. Lily's Second Chance simply gathers senior Mixed Breeds in one place so they're easier to find.
Are there always senior Mixed Breed dogs available in Maine?
Availability changes often as dogs are adopted and new ones are listed. If you don't see a senior Mixed Breed in Maine right now, check back soon or browse nearby states — new dogs are added regularly.
Can I adopt a senior Mixed Breed from Maine if I live elsewhere?
Often, yes. Many rescues and shelters in Maine arrange or help coordinate transport for the right adopter, while others prefer a local meet-and-greet first. Open a dog's profile and ask the organization directly how their out-of-area adoption process works.
Know a senior Mixed Breed in Maine who needs a home?
Shelters and rescues can list adoptable senior dogs for free.